Recompile all 26 .sxbc with define-library wrappers + fix eval/JIT

All 26 browser modules recompiled with define-library/import forms.
Compilation works without vm-compile-adapter (JIT pre-compilation
hangs with library wrappers in some JIT paths — skipped for now,
CEK compilation is ~34s total).

Key fixes:
- eval command: import-aware loop that handles define-library/import
  locally without touching the Python bridge pipe (avoids deadlock)
- compile-modules.js: skip vm-compile-adapter, bump timeout

2621/2621 OCaml tests passing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

shared/static/wasm/sx/vm.sx

@@ -1,3 +1,41 @@
+
+
+(define-library (sx vm)
+  (export
+    make-upvalue-cell
+    uv-get
+    uv-set!
+    make-vm-code
+    make-vm-closure
+    make-vm-frame
+    make-vm
+    vm-push
+    vm-pop
+    vm-peek
+    frame-read-u8
+    frame-read-u16
+    frame-read-i16
+    vm-push-frame
+    code-from-value
+    vm-closure?
+    vm-call
+    frame-local-get
+    frame-local-set
+    frame-upvalue-get
+    frame-upvalue-set
+    vm-global-get
+    vm-resolve-ho-form
+    vm-call-external
+    vm-global-set
+    env-walk
+    env-walk-set!
+    vm-create-closure
+    vm-run
+    vm-step
+    vm-call-closure
+    vm-execute-module)
+  (begin
+
 (define make-upvalue-cell (fn (value) {:uv-value value}))
 
 (define uv-get (fn (cell) (get cell "uv-value")))
@@ -516,6 +554,10 @@
         (vm-push vm (inc (vm-pop vm)))
         (= op 175)
         (vm-push vm (dec (vm-pop vm)))
+        (= op 112)
+        (let
+          ((request (vm-pop vm)))
+          (error (str "VM: IO suspension (OP_PERFORM) — request: " request)))
         :else (error (str "VM: unknown opcode " op))))))
 
 (define
@@ -552,3 +594,9 @@
         (dict-set! vm "frames" (list frame))
         (vm-run vm)
         (vm-pop vm)))))
+
+
+)) ;; end define-library
+
+;; Re-export to global namespace for backward compatibility
+(import (sx vm))